Context The Summer of 2018 was ridiculously hot and we decided that we wanted to buy a central air conditioning unit. Would spending more to get an air-air heat pump instead make economic and environmental sense?
a quick note: shopping for heat pumps sucks. Every salesman claims to have the best reliability and service, and there is no independent source that will help you sort it out.
A quick introduction to heat pumps The air-to-air heat pump is an amazing device.